Dear Mr. Mayer,
I am sorry to hear of your confusing paths. Unfortunately that is too common among developing singers these days. I was just working with students this week on the problem of a lack of good tension causing unwanted tension. If you set up the body correctly there will be flexible tension appropriate for good singing. Then, when the body and voice is functioning correctly, it will tell you what your voice type is. The fach comes later after you have developed. The issue of support is another misunderstood concept that I was just discussing with students. Support happens from doing the correct coordination with the body, it is not something you try to do as in "support the tone". If your posture is correct and you use your vocal mechanism in a balanced manner the voice will be supported.